You can be summoned only after a year since you finished your service.
I've been called to service after one year and four days.
The army sure doesn't waste any time, which is a shame, since it wastes almost everything else. I have nine qualification points as a weapons control operator, seven qualification points as a medic, and still, I will be doing that time as an ordinary infantry soldier with my two lousy qualification points for that.
anyway, I will be going there on the 19 of April, which means I won't be able to post for some time.